C h a p t e r 5 C PU a n d M o d u l e D e v ic e s
5 - 9
5_
5.2.3
Strings
The PLC can process strings composed of ASCII codes (*1). A complete string begins with a start character, and ends
with an ending character (NULL code). Strings can have maximum length of 31 characters, and ISPSoft automatically
adds the ending character (16#00).
1.
No string (NULL code) is moved.
D0=0 (NULL)
2.
The string has an even number of characters.
D0
16#62 (b)
16#61 (a)
D1
16#64 (d)
16#63 (b)
D2
0 (NULL)
3.
The string has an odd number of characters.
D0
16#62 (b)
16#61 (a)
D1
16#64 (d)
16#63 (b)
D2
0 (NULL)
16#65 (e)
*1: ASCII code chart
Hex
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
ASCII
Hex
10
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1E
1F
ASCII
Hex
20
21
22
23
24
25
26
27
28
29
2A
2B
2C
2D
2E
2F
ASCII
SP
!
"
#
$
%
&
'
(
)
*
+
,
-
.
/
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